25770975

素因数分解:

$3^1\times 5^2\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{131}}^1$

素因数の和:248

約数の個数: 48

約数和(自身を含む): 44651904

約数和(自身を除く): 18880929

約数列:

[1, 3, 5, 15, 25, 43, 61, 75, 129, 131, 183, 215, 305, 393, 645, 655, 915, 1075, 1525, 1965, 2623, 3225, 3275, 4575, 5633, 7869, 7991, 9825, 13115, 16899, 23973, 28165, 39345, 39955, 65575, 84495, 119865, 140825, 196725, 199775, 343613, 422475, 599325, 1030839, 1718065, 5154195, 8590325, 25770975]

約数ペア:

[(1, 25770975), (3, 8590325), (5, 5154195), (15, 1718065), (25, 1030839), (43, 599325), (61, 422475), (75, 343613), (129, 199775), (131, 196725), (183, 140825), (215, 119865), (305, 84495), (393, 65575), (645, 39955), (655, 39345), (915, 28165), (1075, 23973), (1525, 16899), (1965, 13115), (2623, 9825), (3225, 7991), (3275, 7869), (4575, 5633)]